EXTRACTION CHROMATOGRAPHY WITH MODIFIED POLY(VINYL CHLORIDE) AND DI(2-ETHYLHEXYL)DITHIOPHOSPHORIC ACID

被引：3
|
作者：
BROMBERG, L [1 ]
LEVIN, G [1 ]
机构：
[1] WEIZMANN INST SCI,DEPT MAT & INTERFACES,IL-76100 REHOVOT,ISRAEL
来源：
JOURNAL OF CHROMATOGRAPHY | 1993年 / 634卷 / 02期
关键词：
D O I：
10.1016/0021-9673(93)83004-C
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method for the preparation of packed-bed columns made of gelled beads is described. The stable gelled beads composed of dialkyldithiocarbamate- or dialkyldithiophosphate-substituted poly(vinyl chloride) and di(2-ethylhexyl)dithiophosphoric acid were capable of the selective separation of metal ions. The stoichiometries of Ag+/H+ and Cd2+/H+ extraction were established to be 3:1 and 2:1, respectively. A simple model of Ag+ extraction kinetics was correlated with the experimental data. The selectivity of metal separations in displacement and elution chromatography was demonstrated.
引用
收藏
页码：183 / 196
页数：14
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